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JOHN F. CHAMBERS, OF CALIS'IOGA, CALIFORNIA.

Letters Patent No. 76,160, dated lIarch 31, 1868.

IMPROVEMENT INk SHINGLE-MAGEINES.

dige rigrmlc retrait te iu its: nttert tttett mit 11i-smug tart at tigestmt.

TO ALL WI-IOM ITVMAY CONCERN:

Be it known that I, 'JOHN F. CHAMBERS, of Calistoga, county of Napa,State of California, have invented an Improved Shingle-Machine; and Ido` hereby declare the following description and accompanying drawingsare sufficient to enable any person-skilled in the art or vscience towhich it most nearly apport-eins to make and use my saidinvention orimprovement without, further invention er experiment. v

The object of' my invention is to provide an improved machine for rivingand shaving shingles, which consists of a river, upon which the bolts.of the proper length are clamped, and then split out. From this theyare 'taken and placed on a roughenedtahle, and aroller is made to passover them, so as to hold thein firmly down,

o ne end of the tahle rising-at the same time, lse that the end of theshingle'is rmly clamped and held by adcg,

' while the knife, passing directly behind the roller, shaves one side.One edge is jointed at the same time, after which the roller moves back,thetable is depressed, and the shingle freed, when it Amay heturned overand the other side, shaved and the other` edge jointed. By apeculiarmechanism, one end of the table rises at each forward motion ofthe knife, so as'te clamp the shingle, while the other eudrises, atevery alternate motion, and thus gives the shingle the requisite taper,l

'To more fully explain my invention, reference is had to accompanyingdrawings, forming apart of this specification, of which- Figure 1, sheet1, is'a plan.

Figure 2, sheet 1', is a side elevation, showing the river.

Figure 3, sheet 2, is a side elevation, showing the shaver.

Figure 4, sheet 2,'is aside sectional elevation, showing` the' mechanismfor raising and depressing the table.

Similar letters of reference in each of the figures indicate like parts;

The river consists of a framework, A A, betweenthe sides of which thecarriageB travels. This carriage is actuated and fed forward by arack,C, and pinion,D. The dog E is supported and vibrates upon an uprightstandard, .in frontof which the holt is placed, when theA hingedYstandard is-raised 'under the end of the dog E, thus pressing thetoothed end into .the end ofthe bolt, and holding it lirinly while beingcut, Two upright posts,'G G, serve as guides, betweenwhieh therivin'g-knife H and its sliding frameItravel, reciprocating motion`being given by means Aof the crank's'JJ and the connecting-redsorpitnoen K K. Av bar, "i, is pivoted 'toene of the guides G, so that,asthe frame I rises and falls, it carries a hloek, M,n which moves Lback and forward. A pawl, N, is attached' to the lower end of L,andvibrates with it. The pawl slides back and forward on aprojection on thespringO, so that, when this spring is up, the pawl is kept out ofoontact'with .the ratchet I?, and do es not Afeed the carriage forward,bntwhen a belt has heen placed on the c arriavge, the spring O ispresseddown and detained by a notch in the pin It, thas allowing the pawl andratchet-,to act until the bolt is all split,when the pin S on 'thecarriage releases the spring O, by'pressing the block T .to one side, sothat the carriageisfed forward no farther, and can he run back atpleasure for anotherbolt, after the split bolt has beenremoved from thecarringe.l As fast as the shingles aresplit they fall to the hack oftheriver, from whence they maybe taken and placed on the' roughened surfaceof the table U.' This table is kept down by a stiff spring, V,and rests.upon two shafts. The shaft a is eccentric, and is operated by-theknee-lever W,'so that, at each forward motion of the knife, the motionof the shaft elifts the end of the table, thus bringingitnearer theclamp or dog, b, sothat the end of a shingle would berinly held inplace. The other supporting-shaft, c, is made flat, and is operated 'bythe pawl d, and ratchet and the wheel'f, and pinion-g,so that, at eachmotion, it is turned one-fourth around, thns presenting at onellno'tionitsvedge and atthe next its sideiand alternately raising andlowering'lthat en d of thetable, so that, after shaving one side of ashingle, it may be turned over, and by the rising of the table it willbe tapered, as desired. A sliding frame, h, carries the'shaving-knife1,' and the jointer c, and is operated by the crank m and p itman n. Thedriving-pulley@ runs loosely on the crank-shaft, andwhen it is desiredto Vthrow the .shavingknife forward, it is done by means of a clntch, i,operated by Ithe lever t and treadle u.

When shaving a shingle,l it is placed upon the table U, and the footpressed on the treadle u, thus throwing the clutch against the wheel.hisV moves the sliding fraaie 7L lwith the knife z' and the roller wforward. The

back end ofl the table being raised, by the knee-leverW acting on theeccentric-shaft a, the shingle is held firmly against the clog b, whilethe roller 'w presses it down upon the table U, and corrects any windingor warpingof the shingle, and so allows the knife to shave one slidesmoothly4 i The fronte is then carried hack land the shinigle released,when,v by removing the footfroml it, time will be given to turn theshingle over, after which the knife inay agziin be thrown forward endbeck to its stopping-place by one pressure of the foot. Y When the fnamet moves huelga projecting arm, x, comes in contactwith.thecurved'ends'of the pawl (Lend moves it back, sc for as topartially revolve the ratchet e,- This turns the shaft c up edgewise, sothat by the next movement of the i knife the shingles will have therequisite taper.

Two sets ethninh-screws, z z z z@ Servelto reise and lower the table,sov as'to varythe -thicltnese of the shingle.

The river is intended to Werl( muclrfas'ter' than the shaver, so that ina. short'time a suicient number or" shingles may be split to last theshaver the whole dey, or-one'slmver may be plecd on each side oftheriver. A

The machine may he Worked by. hand, horse', or stenmfpower, but isintended to he portable und work by horse-power.

Having described myvinvention, what I claim7 is- The combination andarrangement of thedog In, movable table U, eccentric-shaft a, end`levers W, for clamping and holding the shingle while itis beingzshavd;and in combination with the parts `nbovef claimed, claim the sliding;rframe t and -lnii'e for shaving the shingle.

I also claim the combination and arrnngcinent of the Het shaftfe, piniong, wheelfrrntehet e, and pawl d, to alternately raise and lower the endof the table U,'to shave the shingles tapering.

In witness whereof, I have hereunto set my hand and seal.

JOHN F. CHAMBERS. [L 3.] ffitnesses:

C. W. M. SMITH, J. L. Boom.

